Are people animals?
Rights can only belong to those who can control duties -->
Some people think children, animals, the dead, future generations, cognitively impaired cannot have rights. However it has been said that morally superior beings may not do what they wish with lower standing moral beings
Some animals like tigers and alligators are dangerous to own. They are wild and lethal.
Are animals, persons, sub persons or things? If they are things, are they someones property or simply unowned (self owned)
Some animals would go extinct if they were allowed to own them. A list of these animals can be found below.
Link26Endangered animal list
Certain dog breeds are aggressive and dangerous. Personality is a spectrum in dogs, some labradors have worse personalities than terriers. Some are suitable to be guide dogs. A list of these breeds will need to be added here in a spectrum from worst to best.
Some people say there should be a dangerous owner act as there is no such thing as a dangerous dog.
Link28History dangerous dog laws (U.K)
Ban dogs to clean up dog poo? http://www.bbc.co.uk/news/magazine-22853270